| 摘要 |
A stabilizing plate for a dual-barrel dispensing gun of the type having a pair of laterally-displaced and adjustable plunger shafts with end-mounted pistons for extruding compound from twin cartridge packs. The stabilizing plate spans both plunger shafts rearwardly of the pistons and engages both sides of a twin cartridge pack seated in the dual-barrel, thereby aligning the cartridge pack relative to the plunger shafts during use. This helps to maintain a proper mix ratio from both sides of said twin cartridge pack. The stabilizing plate is formed with side-by-side apertures to pass the plunger rods of the dispensing gun. The front face of the stabilizing plate is defined by radial centering channels. More specifically, two sets of radial centering channels are provided, one set on each side of the stabilizing plate (each set corresponding to a plunger shaft), and each set being a series of circular channels of increasing diameter. Preferably, the stabilizing plate has two or more channels on each side respectively sized to seat any from among the group of 750 ml, 300 ml, 150 ml, 150 ml, and 75 ml capacity cartridges of a twin cartridge pack. A pair of biasing springs are also provided, each carried on a corresponding plunger shaft behind the stabilizing plate. Set screws anchor the stabilizing plate to the plunger shafts. The stabilizing plate accommodates a range of different cartridge sizes, thereby avoiding the need to change parts each time that a different-sized cartridge(s) is used. Moreover, the stabilizing plate can be economically manufactured of molded plastic and installed onto a dual-barrel dispensing gun at minimal additional cost of time and materials.
|
